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Design of modular accumulation system
Janek, Ondřej ; Klusáček, Jan (referee) ; Morávek, Jan (advisor)
The bachelor's thesis deals with the theoretical introduction to batteries and the design of a modular storage system. The first three parts focus on the theory, which discusses basic concepts such as electricity accumulators, the distribution of lithium cells with a focus on the most important LiFePO cells and a description of the safety system. The second part deals with the specific design of the system. That is, the design of the electrical diagram, the choice of cell and switchboard or the calculation of the total budget.
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Manufacturing of barrels for hunting weapons
Klusáček, Jan ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with the influence of hunting rifle barrel production technology on shooting precise. The theoretical part of the thesis deals with the history of production of barrels, their main parts and special production technologies. It also contains an analysis of the specific weapons used in the practical part. In the practical part the shooting precision of these weapons was tested on the shooting range. The final discussion evaluates the data obtained in the practical part.
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Control of power inverter with active rectifier
Klusáček, Jan ; Knobloch, Jan (referee) ; Rubeš, Ondřej (advisor)
The bachelor’s thesis deals with design of control algorithm and control electronics for frequency converter designed for operation control of induction generator in small hydro power plant. The thesis consists of basic description of scalar control of induction machines by method of constant magnetic flux, suitable control electronics overview, user and integrated development environment overview and detailed description of user code. Validation of functionality of the user code by measurement with induction machine is also included.
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Control of Lego Mindsorms
Chudík, Vladimír ; Pikula, Stanislav (referee) ; Klusáček, Jan (advisor)
This bachelor’s thesis contains description and usage of module BrickPi in combination with single-board computer Raspberry Pi, as a replacement for control brick from Lego Mindstorms. In the first part of the thesis are described and compared control brick from Lego Mindstorms and Raspberry Pi with module BrickPi. Mentioned are power options for the system and differences between variants of the module. Further is described the concept of remote control by www browser, possibility of displaying data from sensors, streaming video to webpage and form of communication between user and server. In the final part of this thesis are designed tasks for BROB course, which use module BrickPi. One task is realised and provided with documentation.
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Application of Mean Normalized Stochastic Gradient Descent for Speech Recognition
Klusáček, Jan ; Hradiš, Michal (referee) ; Pešán, Jan (advisor)
Umělé neuronové sítě jsou v posledních letech na vzestupu. Jednou z možných optimalizačních technik je mean-normalized stochastic gradient descent, který navrhli Wiesler a spol. [1]. Tato práce dále vysvětluje a zkoumá tuto metodu na problému klasifikace fonémů. Ne všechny závěry Wieslera a spol. byly potvrzeny. Mean-normalized SGD je vhodné použít pouze pokud je síť dostatečně velká, nepříliš hluboká a pracuje-li se sigmoidou jako nelineárním prvkem. V ostatních případech mean-normalized SGD mírně zhoršuje výkon neuronové sítě. Proto nemůže být doporučena jako obecná optimalizační technika. [1] Simon Wiesler, Alexander Richard, Ralf Schluter, and Hermann Ney. Mean-normalized stochastic gradient for large-scale deep learning. In Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on, pages 180{184. IEEE, 2014.
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Date acquire system for Micropel's PLC network
Klusáček, Jan ; Valach, Soběslav (referee) ; Macho, Tomáš (advisor)
This paper deals with desgin and implementation of hardware and software for data acquisition device. Device is based on single board computer FoxBoard G20 which is placed on custom board which provide RS485 interface and short-term UPS. Device is runing Linux with device driver which enabling communication with Micropel PLCs across RS485 bus. Data are read from PLCs are saved to database and afterwards presented to user via web interface.
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Thermostat data acquisition and processing system
Trizna, Lukáš ; Klusáček, Jan (referee) ; Pikula, Stanislav (advisor)
The aim of this bachelor thesis is to design a system for monitoring and evaluating data from temperature sensors during thermostat testing in thermal chambers. The designed solution involves an extension of the G35 processor software by additional remote monitoring setting screens. An UDP SysLog client at the G25 processor forwards messages from G35 processor to an UDP SysLog server. The server is implemented by an application running on a PC written in C# language. The thermal data are saved to a file and drawn in a graph by the application. The designed system is used as a part of the thermostat development in the Honeywell s. r. o. company. The system enables test automation, helps the operator and provides immediate feedback about the running tests.
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Smart metering data analytics
Ševčík, Prokop ; Klusáček, Jan (referee) ; Drápela, Jiří (advisor)
The thesis focuses on using data from smart meters based on two-way communication in distribution system. It describes hardware structure of smart meter and measurements of electrical quantities. The thesis summarizes multiple smart metering use cases in DS. It reviews actual implementation of use cases in DS and it evaluates data available from smart meters. Data analytics tools for DS analysis are presented based on possible use cases
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Dynamic Time Warping
Černohous, Lukáš ; Pikula, Stanislav (referee) ; Klusáček, Jan (advisor)
This thesis describes the method of dynamic Time Warping (DTW), its principles and method of calculation options. Additionally, it lists some of the typical examples of its implementation. In the practical part, it focuses on the creation oof a simple signature verification model using DTW and it evaluates the results. The model was programmed in MATLAB.
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Feature Selection Based on Dynamic Mutual Information
Manga, Marek ; Klusáček, Jan (referee) ; Honzík, Petr (advisor)
This work analyzes and discuss a issue of implementation feature selection method called Dynamic mutual information (DMIFS). Original description of the DMIFS contains several irregularities, therefore DMIFS can not be implemented exactly as original method. Results of implemented DMIFS is compared with results of original DMIFS. This results shows that implemented DMIFS is similar to the DMIFS. Next part of the work describes design of two new methods based on the DMIFS. The first method called DmRMR merges mRMR and DMIFS. Better performance but worse stability of DmRMR was proved by several tests. The second method called WDMIFS is weighted version of the DMIFS based on AdaBoost algorithm. The WDMIFS has worse performance than DMIFS. Finnaly, manual for implementing DMIFS to RapidMiner and Weka is provided.
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